Analysis Overview
SHA256
1d47bc46cdd99ed0d081c9995e1f593b20a67dc651ff2a37706db26040ed81e9
Threat Level: Shows suspicious behavior
The file avast_free_antivirus_setup_online.exe was found to be: Shows suspicious behavior.
Malicious Activity Summary
Writes to the Master Boot Record (MBR)
Executes dropped EXE
Suspicious behavior: LoadsDriver
Suspicious use of SetWindowsHookEx
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-06-14 14:30
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-14 14:30
Reported
2024-06-14 14:33
Platform
win7-20240508-en
Max time kernel
144s
Max time network
152s
Command Line
Signatures
Writes to the Master Boot Record (MBR)
| Description | Indicator | Process | Target |
| File opened for modification | \??\PhysicalDrive0 | C:\Users\Admin\AppData\Local\Temp\avast_free_antivirus_setup_online.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\avast_free_antivirus_setup_online.exe
"C:\Users\Admin\AppData\Local\Temp\avast_free_antivirus_setup_online.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | iavs9x.u.avcdn.net | udp |
| US | 8.8.8.8:53 | v7event.stats.avast.com | udp |
| US | 8.8.8.8:53 | iavs9x.u.avcdn.net | udp |
| US | 8.8.8.8:53 | iavs9x.u.avcdn.net | udp |
| US | 8.8.8.8:53 | iavs9x.u.avcdn.net | udp |
| US | 8.8.8.8:53 | iavs9x.u.avcdn.net | udp |
| US | 8.8.8.8:53 | iavs9x.u.avcdn.net | udp |
| US | 8.8.8.8:53 | iavs9x.u.avcdn.net | udp |
| US | 8.8.8.8:53 | iavs9x.u.avcdn.net | udp |
| US | 8.8.8.8:53 | iavs9x.u.avcdn.net | udp |
| US | 8.8.8.8:53 | iavs9x.u.avcdn.net | udp |
| US | 8.8.8.8:53 | iavs9x.u.avcdn.net | udp |
| US | 8.8.8.8:53 | iavs9x.u.avcdn.net | udp |
Files
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-14 14:30
Reported
2024-06-14 14:33
Platform
win10v2004-20240508-en
Max time kernel
144s
Max time network
149s
Command Line
Signatures
Writes to the Master Boot Record (MBR)
| Description | Indicator | Process | Target |
| File opened for modification | \??\PhysicalDrive0 | C:\Users\Admin\Desktop\avast_free_antivirus_setup_online.exe | N/A |
| File opened for modification | \??\PhysicalDrive0 | C:\Users\Admin\AppData\Local\Temp\avast_free_antivirus_setup_online.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\Desktop\avast_free_antivirus_setup_online.exe | N/A |
Suspicious behavior: LoadsDriver
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\Desktop\avast_free_antivirus_setup_online.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\avast_free_antivirus_setup_online.exe
"C:\Users\Admin\AppData\Local\Temp\avast_free_antivirus_setup_online.exe"
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=1276,i,1809100026287847100,9768898026582633513,262144 --variations-seed-version --mojo-platform-channel-handle=996 /prefetch:8
C:\Users\Admin\Desktop\avast_free_antivirus_setup_online.exe
"C:\Users\Admin\Desktop\avast_free_antivirus_setup_online.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | iavs9x.u.avcdn.net | udp |
| US | 8.8.8.8:53 | v7event.stats.avast.com | udp |
| US | 8.8.8.8:53 | iavs9x.u.avcdn.net | udp |
| US | 8.8.8.8:53 | iavs9x.u.avcdn.net | udp |
| US | 8.8.8.8:53 | iavs9x.u.avcdn.net | udp |
| US | 8.8.8.8:53 | iavs9x.u.avcdn.net | udp |
| US | 8.8.8.8:53 | v7event.stats.avast.com | udp |
Files
C:\Users\Admin\AppData\Local\Temp\avast_free_antivirus_setup_online.exe
| MD5 | b73d0e9ae44340a04db9a17f6b390c1b |
| SHA1 | ce4abb30b7b7ba2fbd5a19f9b59872e6f7c1789d |
| SHA256 | 1d47bc46cdd99ed0d081c9995e1f593b20a67dc651ff2a37706db26040ed81e9 |
| SHA512 | 659708747c77b353e6c9f2a69679f3b99234400309567953e3a007cb0d80a27d54663995d569537537efaf9d18749787ff11dbc28aa29daaa61d2b911e5f2adc |